Flushing mechanism



Aug. 16,1927. 1,639,288

| cs. GIARDINO ET AL FLUSHING MECHANISM Filed Nov. 17, 1924 I 2 Sheets-Sheet} 'lnverflor. Liborio G. Gi clrdynq Joseph E'Gnardmo YZWMM- A1 1 ya.

Patented Aug. 16, 1927.

UNITED STATES PATENT OFFICE.

rnusrrnvo MECHANISM.

Application filed November 17, 1924. Serial No. 750,260.

This invention relates to improvements in constructions for controlling the delivery of a liquid under pressure and the object thereof is to provide means which can easily be operated to discharge liquids under high pressure from a liquid supply. such as a service line or reservoir, and which is also equally adapted to control the delivery of liquids under low pressure.

More specifically the invention relates to improvements in flushing constructions and 'the object thereof is to provide an easily controlled valve mechanism for discharging so much as may be desired of the contents of the flush tank.

A further object of the invention 1s to provide a novel flush tank construction which is capable of withstanding high pressures and also to provide suitable valve mechanism for controlling the discharge of liquid from the tank.

A further object of the invention 1s to provide a flush tank construction having a closed reservoir with an inlet located below the top with means for discharging such air as accumulates in the upper portion of the reservoir, thus enabling the reservoir to be filled to a proper depth notwithstanding the accumulation of air caused by the repeated filling of the reservoir, and further using the force of the air thus confined to aid in the-discharge of the liquid from the reservoir. I

Other objects and features of the invention will more fully appear from the following description and the accompanying drawings and will be particularly pointed out in the claims. r

In the drawings:

Fig. 1 is a vertical transverse sectional view through a preferred form of reservoir and valve mechanism for discharging the.

liquid from the reservoir; and

Fig. 2 is a side elevationof the preferred construction illustrated in Fig. 1. i In order to provide a reservoir which will withstand high pressures the present invention contemplates the production of a cy lindrical reservoir or preferably a pair of superposed and communicating cylindrical reservoirs which preferably are cast integral, the upper reservoir being provided below itstop with an inlet conduit, and the lower reservoir with a delivery conduit from which the delivery of the liquid is controlled by a suitable valve preferably a compound valve operable first partially to relieve the pressure in the valve chamber which communicates with the delivery conduit for the reservoir and thereafter operable fully to open the port leading from the valve chamber to the outlet which leads tothe receptacle to be flushed. r

As illustrated in the accompanying drawings the reservoir comprises an upper closed cylinder 1 preferably of cast Inetaland a lower closed cylinder 2 also preferably of cast metal, both cylinders desirably being integral and having a common wall 3. pro vided with an aperture 4 establishing coinmunication between the upper and lower reservoirs. The aperture 4 may be of'any desirable width and preferably extends lengthwise of the cylinders.

The cylinders 1 and 2 are respectively cast with a continuous cored rib '5 providing an air conduit 6 leading from the upper "portion of the upper reservoir to the end of't'he delivery conduit 7 which extends downwardlv from the lower wall of the lower reservoir 2. The upper res-ervoir is provided with an intake 8 through which liquid under pressure may be delivered from usual service systems whether high or low pressure. The rib 5, containing the air conduit 6 and the delivery conduit with which it communicates, desirably is located midway of the length of'the cylinders.

The means for controlling the delivery of liquid from the reservoir comprises a compound valve having members'progressive'ly operable first partially to relieve the pressure upon the main valve and thereafter to open the main valve to permit a quick discharge of the contents of the reservoir thus providing a construction'which can be easily manipulated although the compound valve is subject to high pressure. I

In the preferred embodiment of the invention illustrated the valve mechanism comprises a valve casing 9 secured to the de livery conduit 7 of the reservoir bya suitable coupling 10; The valve casing coinprises an inlet chamber 11 which communicates with the delivery conduit 7 and is therefore subject to pressure of the liquid in the tanks and also to the pressure in the service pipe. It also comprises an outlet chamber 12 which communicates with the delivery pipe 18 which leads to the receptacle to be flushed. The'inlet chamber 11 and outlet chamber-12 are separatedby a wall-l t the valve construction.

having a port 15. The wall 14 presents valve seat 16 which is surrounded by a valve cage comprising arms 1'? and a connecting annular ring 18 at the end of said arms, the arms 17 forming guideways "for the main valve which controls the delivery of the liquid from the inlet chamber 11 to the out let 12. i

The compound valve which is illustrated herein comprises a main valve 19 having a tubular hub 20 with a packing ring 21, of suitable fibrous material, secured to the face of the valve by a nut 22 which is mounted upon the screw threaded outer wall 01 the hub 20. A supplemental valve 23 having a suitable packing washer 2% is secured by a screw 25 upon the end of a tubular valve stem 26 which fits and is reciprocably mounted in'the tubular hub 20 of the main valve. The tubular stem 26 is provided with ports 27 adapted upon opening movement of the supplemental valve to communicate with the inlet chamber and also has ports 28 for discharging the liquid from the tubular valve stem into the outlet valve.

The valve stem desirably is provided with a solid extension 29 which is reciprocably mounted in a way a boss 30 projecting inwardly from the casing 9. The solid por tion 29 of the valve stem is provided with a rack 31 which is engaged and operated by a pinion 32 which is secured to a shaft 33 extending transversely of the valve casing. The outer end of the shaft 33 is provided with an actuating arm 3st to which may be attached a cord, chain, or other suitable means for actuating the lever. A. helical spring 35, mounted upon the shaft 33, tends normally to return the valve to closed position.

In order to permit ready assembling of the device the casing 9 is provided with an aperture 36 in axial alinementwith the valve stem and of sufficient size to permit convenient access to the valve. The aperture 36 is normally closed by a screw threaded plug 37. A similar aperture 38 desirably is provided in the opposite end of the valve casing and is closed by a similar screw plug 39. 1

In the operation of the device water under pressure is admitted through the inlet 8 to the upper cylindrical reservoir from which it passes down through the aperture 4 into the lower reservoir and inlet chamber 11 of When the reservoirs are both filled up the valve is subjectto a pressure due to the amount of water in the reservoirs and also to the pressure in the service pipe. Thus the compound valve is held firmly against its seat. Any air which is entrained by the water entering the reservoir will accumulate in the empty portion of the upper tank with which the air conduit communicates.

the inlet chamber 11 flows through the tubular valve stem into the outlet thereby partially relieving the pressure upon the main valve. Upon predetermined movement ot the main valve the wallsot the outlet port 28 engage the end of the hub of the main 3' valve and upon further movement of the valve stem move the main valve from its seat. Thus the port 15 may be fully opened to permit rapid discharge of water from the reservoir.

hen the valve is opened the air in the upper portion of the reservoir passes clownwardly through the air conduit 6 and as the air in the upper portion of the reservoir is under pressure aids in the discharge of the water through the outlet. Furthermore the air conduit prevents such accumulation of air inthe upper portion of the upper reservoir as to interfere with the desired amount of liquid to be contained in the reservoirs.

By employing reservoirs having circular walls, such as cylindrical reservoirs, a construction is provided which offers a maximum resistance to the pressure of the liquid. Such walls, therefore, will not become distorted when using high pressure. The construction is such that the reservoirs can be readily cast. Such reservoirs can be readily and quickly emptied and noiselessly filled and are adapted both tohigh and low pressure service systems.

lVhere high pressure service systems are employed the valve construction can be coupled directly to the service system and the valve manipulated by hand as above described to deliver such amount of water as may be desired to produce the proper flushing action.

By reason of the construction above described a flush tank structure is produced which is noiseless in its operation and which is capable of withstanding a very high pressure without'danger of leakage or collapsing and in which no ball-cock is required. Furthermore, a suitable flush tank can be employed which requires less than half of the space of the usual flush tank. It may be so constructed as to harmonize with other bathroom fixtures and may be readily substituted for other flush tank constructions in usual systems. either high pressure or low pressure without necessitating special connections.

-t will be understood that the embodiment of the invention disclosed herein is of an illustrative character and is not restrictive and that various changes in form, construction and arrangement of parts may be made 'ithin the spirit and scope of the following claims.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. A flush tank construction comprising a closed reservoir having rigid walls, an intake for liquid under pressure communicating with said reservoir below the top thereof and a delivery conduit, a valve casing having an inlet chamber communicating with said delivery conduit and an outlet, an air conduit leading from the upper portion of said reservoir to said inlet chamber, a wall separating said inlet chamber from said outlet having a port and a valve for said portand means for actuating the same.

2. A flush tank construction comprising a plurality of communicating superposed reservoirs having circular walls, an intake for liquid under pressure leading to the upper reservoir below the top thereof, a delivery conduit leading from the bottom of the lower reservoir, a valve casing having an inlet chamber communicating with said delivery conduit and an outlet, an air conduit leading from the upper portion of the upper reservoir to saidinlet chamber, a wall separating said inlet chamber from said outlet having a port and a valve for said port and means for actuating the same.

3. A flush tank construction comprising superposed cylindrical reservoirs having a common connecting integral wall provided with an aperture therethrough, an intake for liquid under pressure in the upper reservoir located below the top thereof and a delivery 1 conduit leading from the lower portion of the lower reservoir, a valve casing having an inlet chamber communicating with said delivery conduit and an outlet, an air conduit formed in the integral walls of said reservoir leading from the upper portion of the upper reservoir to said delivery conduit, a wall separating said inlet chamber from said outlet having a port and a valve for said port and means for actuating the same.

In testimony whereof, we have signed our names to this specification.

LIBORIO G. GIARDINO. JOSEPH F. GIARDINO. 

